MAX3840ETJ+

Series:	--
Packaging:	Tube
Part Status:	Active
Applications:	Data Transport
Interface:	--
Voltage - Supply:	3 V ~ 3.6 V
Package / Case:	32-WFQFN Exposed Pad
Supplier Device Package:	32-TQFN-EP (5x5)
Mounting Type:	Surface Mount
Base Part Number:	MAX3840

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MAX3840ETJ+ is a high-efficiency single-channel redriver dedicated to improving signal integrity and link performance for DisplayPort and SuperSpeed USB 3.0 applications. It incorporates Equalization together with Cable de-skew and re-skewing to reset USB channel bit-error rate (BER) back to 10-12 or better, significantly enhancing system link performance. The MAX3840ETJ+ is typically used to replace the analog equalizer and re-timer at the receiver end of the cable.The typical application field involves two main fields; the first being USB applications and the second, DisplayPort applications. In the USB field, the application of MAX3840ETJ+ covers almost any device with a SuperSpeed USB 3.0 interface, allowing it to reap the benefits of improved signal integrity, reduced BERs and increased data transfer rates; low-speed and high-speed applications have both been noted to benefit from this device. The second Application field involves DisplayPort enabled applications, where the MAX3840ETJ+ significantly improves upon link performance and allows for longer cable runs (up to 10m) and larger resolutions to be achieved.The MAX3840ETJ+ consists of an Equalizer and Re-timer, enabling it to perform both Clock Recovery and Re-timing, but also offers the ability for Cable De-Skew/Re-Skewing.The Equalizer is a wide band programmable equalizer, optimized for USB 3.0, allowing it to increase link performance, even if signals are degraded due to the long traces on the PCBs. The MAX3840ETJ+ also has a programmable de-skew circuit that reads the signals sent to it and adjusts the skew to improve the timing of the signal.The Re-timer circuit then uses the programmable de-skew and equalization to drive an internal FF, generating a continual clock that is used to resend the signal back out via a selectable output. This clock is accurately recovered from the signal so as to perfectly restore the data by correcting zero/one mis-matches, inserting new zero elements and removing inappropriate transitions. This, in combination with the equalizer, creates a signal with a much improved BER, reducing the signal\'s jitter.The MAX3840ETJ+ offers flexibility in the signal process by providing low, medium and high settings for cable de-skew, equalization and re-timing. In addition, the re-timer output can be configured in various configurations depending on the application. The re-timed signal is provided on both outputs as a single-ended signal. Lastly, the MAX3840ETJ+ offers protection from Electrostatic Discharge (ESD) pollution via an Advanced ESD protection circuit.The MAX3840ETJ+ is powered using the USB3.0 or DisplayPort supply voltage and is optimized for use in 0.8V low-power applications.The main advantage of using the MAX3840ETJ+ is that it can improve signal integrity by increasing link performance, reduce BERs and increase data transfer rates. The device is also capable of long-term operation, with no degradation over time. The de-skew and re-skewing of signals increases the timing accuracy of the data, ensuring optimum performance of the link. Lastly, the ESD protection offers an added layer of safeguarding against ESD attacks and thereby prevent system damages.To summarize, the MAX3840ETJ+ is a single-channel redriver that offers Equalization, Cable De-Skew/Re-Skewing, re-timing, a programmable de-skew circuit and Advanced ESD protection; these features make it an ideal solution for both USB 3.0 and DisplayPort applications, allowing for improved signal integrity, reduced BERs and increased data transfer rates. In addition, the device is easy to use and requires less power to operate.

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